Best Low Cost Power Supply - Kaiweets Improved

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Publicado 2021-05-21
This video will show how to lower the noise on the output of the Kaiweets PS-3010 DF 30V 10A Power Supply. This Kaiweets Power Supply is a low cost power supply with 0-30 V range and up to 10 Amps output. It is a switcher so does have some noise, so we will add some filtering to improve this.

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Part 1 of this video:    • FLIR vs FLUKE High-End Multimeter Part 1  

Link to Kaiweets Power Supply at Amazon: amzn.to/32GQtFU

Link to thermal imaging camera: amzn.to/2ZHMAyD

Links to other Multimeters:
FLIR DM92 multimeter: amzn.to/2ztKOXI
FLIR DM93 multimeter: amzn.to/3ebyASF
Amprobe AM570 multimeter link: amzn.to/3eurd8S
Fluke 117 multimeter link: amzn.to/2AhsEbA
Amazon Commercial 90DM030 multimeter: amzn.to/2Jl9yCT

Popular Links:
Micro-cap Tutorials playlist link: Micro-Cap    • Micro-Cap  
Boost Converter Introduction    • Boost Converter Introduction #Boostco...  
Power supply talk:    • Power Supply Types and Terminology  
Link to Amazon for Boost Converter: amzn.to/32HOEFsY

Todos los comentarios (21)
  • @ulwur
    It really shows Eddie has been working with power. He recognized the problem and the fix straight away!
  • This was wonderful, I've waited patiently for this over the last few months and it was well worth the wait! Thank you, I'll perform the modification. This will help in my beginner electronic endeavors. I'll keep an eye out for future mods and vids. Love watching your stuff... sincerely a beginner electronic enthusiast ;)
  • @versace885
    Hi Eddie, thank you sooo much for another Amazing Video and Great Tutoring.
  • @jaymclemore9497
    Really enjoyed the detail in what you were doing. I'm not quite ready (experience wise) to do this to my Kaiweets, but I plan to refer back to this video when I am. I followed along scoping my ps and learned some things. Thanks!
  • @ylkhoo1240
    I gonna get one and do the same modification. You are the master, thank you!
  • @JasonLeaman
    Good video, i like ! I think we need to send some funds to help you get a bigger bench & stronger :) Good work Eddie !
  • @tonysfun
    Now you're talking! Nice job with the noise, but I'll like to see the second video improving it even more! Thanks again for your ideos!
  • @stryderx1
    Thanks for great video. I've got this one and had to get more amps one that could drive DC motors that require 22 amps to start.
  • @nickayivor8432
    Very KNOWLEDGEABLE Thanks 👍 Kiss Anulog From Nick Ayivor from London England UK 🇬🇧
  • I wish I understood this video better, but I guess that's what learning is all about 😅 I'm subscribing!
  • @Kilgorebass7
    I just got one on Amazon prime for $76 plus tax. Great deal, thx for the videos.
  • @dryster123
    It would be great to see a side by side comparison of several budget switching power supplies to see what is best out of the box.
  • @0x07AF
    Back in high school, I think I attempted this kinda mod on every bench supply I owned. They were all linear, most of them were boat anchors and way less (HF) noisy than comparable supplies today...you know, mostly just 60/120Hz ripple artifacts sneaking through and visible when the scope was zoomed way into the noise floor. For whatever reason, I thought the outputs all needed to be cleaned up. I think I only managed to make them worse. "Uhhh. What's a common-mode? The coil goes after the cap, right? Uhhhh" I need to open one up someday and see exactly what I did. Surely it'll be worthy of a spot in the marvelous museum of kludgy blunders.
  • @rickf2061
    Hi Eddie ! A fantastic video!!! THANK YOU for taking the time to present and edit this well planned and executed video. I just bought one of these KAIWEETS power supplies (based on your earlier review video) and am interested in doing these mods to mine soon as well. You identify all the cap. values you used nicely,,, BUT I believe you missed (around 14:09 in the video) the value of the blue square shaped polypropylene capacitor you inserted just before the inductor. As I don't have many capacitors around, I will be buying some for this project - so I would be very grateful if you could reply and let me know. I have re-watched your video a few times and I have tried reading as many of the other comments hoping to see if this was already addressed,,, if it was, I apologize, I must have missed it. THANKS AGAIN... (and keeping my fingers crossed that you see this comment so many moons past your original posting).
  • @mosfet500
    Thanks Eddie. To me it looks like they got the snubbers wrong. The other thing I'd like to see is how the noise looks under load conditions. I see you like the Instek scope. I just picked up their electronic load, not cheap but really nice.